#include "header.h"
int main(int argc, char* argv[]){
	ARGS_CHECK(argc, 2);
	int fd = open(argv[1], O_RDONLY);
	ERROR_CHECK(fd, -1, "open src");

	int ret = ftruncate(fd, 5);
	ERROR_CHECK(ret, -1, "ftr");

	close(fd);
	return 0;
}